Manufacturer description: The Samsung 16-50mm F3.5-5.6 Power Zoom ED OIS lens is the most compact wide-angle zoom lens in the NX system. The 16-50mm lens is three times smaller than the 18-55mm and 20-50mm lenses currently on the market, but offers a similar focal length. By incorporating a Power Zoom function, users can enjoy the benefits of smoother zooming, especially for video applications, while maintaining optimum portability.